import java.util.HashMap;
import java.util.Hashtable;
import java.util.Map;

/**
 * @ wenbin
 * @ date 2020/3/16
 */
public class HashMapTest {
    public static void main(String[] args) {
/*        Map<String,String> map= new HashMap<>();
        Map<String,String> table= new Hashtable<>();
        System.out.println(map.size());*/
    }
}
